baber/WOPTO huggingface dataset:
Patent GB-337960-A (GB)
Title: Improvements in or relating to variable speed gearings
IPC: F16H61/02
Filed: 1929-10-30
Abstract: 337,960. Keller, R. E. Oct. 30, 1929. Controlling variable-speed gearing ; free-wheel clutches.-A friction clutch E connecting the driving and driven shafts A', a' of a speed gear of the countershaft type is actuated by a centrifugal governor F mounted on the driven shaft, so that a direct drive is established when the driven shaft reaches a predetermined speed. The governor comprises weighted levers 10 pressing on a flange 6<1> of the clutch member E', which slides on the shaft a<1>. A low-speed gear wheel d and a reversing-wheel H<1>, which is connected to its pinion H through an idler, drive the shaft a<1> through free-wheel clutches consisting of rollers r, Fig. 2, engaging cam surfaces 16 on a member g keyed to the shaft. The rollers are held by a cage consisting of side plates g<1> which can rotate relatively to the member g to an extent limited by a pin-and-slot connection 40, 41. A sliding dog-clutch member I connects the pinions D or H to the countershaft a, or occupies a neutral intermediate position.
Patent GB-1359121-A (GB)
Title: Target for x-ray tubes
IPC: H01J35/10
Filed: 1972-07-14
Abstract: 1359121 X-ray tubes MACHLETT LABORATORIES Inc 14 July 1972 [2 Aug 1971] 33128/72 Heading HID An anode for an X-ray tube comprises atarget member having an area available for X-ray emission greater than any projected area thereof and held in contact with a backing member. In the rotary anode shown in Fig. 3 a wire 60 is closely wrapped round a target ring 36 which is clamped between two backing rings 38 and 48; the turns of the wire run radially to avoid intercepting any emitted X-rays, and as illustrated the backing ring 38 may be provided with a ridge 72 adapted to enter a corresponding groove in ring 36 to tighten the wire. The wire may be of tungsten, rhenium-tungsten, or molybdenum and may be 0.008 inch diameter for a large focal spot of 1.5-2 mm width (as seen at 64 in the direction of X-ray emission) or 0.003-0.005 inch for a small focal spot of 0.3-1 mm. The backing rings 38 and 48 may be of graphite, tungsten, or molybdenum. In a modification (Figs. 7 and 8, not shown), the target ring is provided with radial grooves. In another construction (Fig. 9, not shown) a fixed anode member is covered with a wire winding, the wires running in the direction of inclination of the anode surface to avoid intercepting X-rays.
Patent GB-436695-A (GB)
Title: Improvements in or relating to thermally controlled relays
IPC: H01H37/36
Filed: 1934-11-19
Abstract: 436,695. Thermally-controlled valves. NAAMLOOZE VENNOOTSCHAP MACH-. INERIEEN-EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. Nov. 19, 1934, Nos. 33281, 33283, and 33284. Convention dates, Nov. 17, 1933, Dec. 29, 1933, and Jan. 24, 1934. [Class 135] [See also Group XXXVII] A thermal relay for operating valves, damper; and the like in response to changes in tempera ture, comprises a chamber 4 closed at its lower enc by a corrugated capsule 3 and connected by a pipe 5 to a chamber 6 thus forming a closec system which contains a liquid with which is mixec a quantity of a light volatile liquid which main ly lies in the chamber 6. A thermally sensitive device 8 such as a contact thermometer is adapted, on a rise in temperature, to connect to a source of supply an electric heater 9 in the chamber 6. This volatilizes the liquid in the chamber 6 forcing liquid down the pipe 5 to move the capsule 3 to operate a valve or other device 1. Modifications are described in which circulating tubes are provided for the volatile liquid so as to produce more rapid cooling.
Patent GB-481767-A (GB)
Title: Improvements in or relating to temporary bridging means or staging for use in constructing concrete or other fireproof floors, walls or partitions, or for other purposes
IPC: E04G1/15
Filed: 1936-12-04
Abstract: 481,767. Staging. DAKIN, E. L. V. Dec. 4, 1936, No. 33298. [Class 20 (ii)] Means for bridging a space between two supports to form a platform or support for shuttering comprises a plurality of girder-like units arranged side by side, adjacent ones with opposite ends resting on the supports, while their free ends are supported by means carried by the units adjacent to each. Each unit comprises a board 1 braced by uprights 7 end plates 8, 9, a bow-string 6, and an encircling band 10, and is provided at one end with a bifurcated fitting 2 to rest on a beam support 3. Lateral projections 5 are provided on each unit at each half adjacent the step, to engage under and support the free ends of adjacent units, the units being arranged as shown in Fig. 6, adjacent units being supported at alternate ends on the beams 3, 4. When used as shuttering the spaces between the units and supports are filled in with short boards. Each unit may comprise a steel plate cut inwardly from one edge and the cut portions bent at right-angles in alternate directions to constitute supports for a board provided with lateral projections, the free edge of the plate being stiffened by a wooden strip secured in any convenient manner. Alternatively each unit may comprise a channel shaped member with flanged edges to secure to a board or a lattice built girder may constitute the unit.
Patent GB-986046-A (GB)
Title: Improvements in or relating to the production of vaccines
IPC: C12N7/06
Filed: 1963-08-23
Abstract: Viruses for use in the preparation of vaccines are deactivated by treatment with diethylpyrocarbonate in aqueous suspension. Specific reference is made to the treatment of measles, smallpox, polio and type A influenza viruses.
Patent GB-973084-A (GB)
Title: Improvements in or relating to electroluminescent devices
Inventor: HUNT ALAN RICHARD DEREK
IPC: H05B33/26
Filed: 1960-09-29
Abstract: <PICT:0973084/C4-C5/1> An electroluminescent device, for use for example in aircraft instruments or in displaying groups of words or signs, comprises electroluminescent material lying between a pair of electrodes one at least of which is wholly or partly translucent or transparent, each electrode being subdivided into a number of electrically separate sub-electrodes 1d, 1e, 1f, 1g and 2d, 2e, 2f, 2g, all or some intersecting at various angles those of the other electrode, electrical contact means for each sub-electrode, a pair of leads 12, 13 for connection to a voltage source 14 and switching means 10e, 10f for connecting the contact means of selected sub-electrodes 1e, 1f of the first electrode to one 12 of the leads, switching means 10d, 10g for connecting the contact means of the remaining sub-electrodes 1d, 1g of the first electrode to the other 13 of the leads, switching means 11e, 11f for connecting the contact means of selected sub-electrodes 2e, 2f of the second electrode to the one 12 of the leads, and switching means 11d, 11g for connecting the remaining sub-electrodes 2d, 2g of the second electrode to the other 13 of the leads. The sub-electrodes of the first electrode taken singly or in combination can correspond to different forms of one variable pattern and those of the second electrode to different forms of a second variable pattern.  In one or both electrodes the pattern sub-electrodes need not constitute the whole of the electrode which can further include one or more background subelectrodes which are never selected sub-electrodes. One or both patterns can be non-variable if required.  The electroluminescent material can be copper activated crystalline zinc sulphide mixed with a dielectric material such as a lacquer.  One set of sub-electrodes can be of transparent or translucent tin oxide formed by spraying a glass plate with a solution of stannic chloride and subdividing the layer formed, and the other set of sub-electrodes can be formed by vaporizing aluminium in vacuo on to the surface of the electroluminescent layer using a mask.  Wires are secured to contact spots provided on the sub-electrodes by bringing the wires into contact with the aluminium, applying spots of an epoxy resin and then applying a further layer of vaporized aluminium.
Patent GB-1069015-A (GB)
Title: Improvements in or relating to leak-resistant electrochemical cells
IPC: H01M2/02
Filed: 1965-08-04
Abstract: 1,069,015. Sealed cells. SOCIETE DES ACCUMULATEURS FIXES ET DE TRACTION. Aug. 4, 1965 [Aug. 4, 1964], No. 33451/65. Heading H1B. A cell having a cup-shaped negative 2 has a sealing cup 9, an insulating casing 10 and a compression ring 11, the casing having turnedunder serrations and the whole making an electrolyte-tight joint. As shown, the various pieces are reduced in diameter so that the cell overall is cylindrical throughout. This may be achieved by drawing the cell through a die at various stages in the manufacture.
Patent GB-917920-A (GB)
Title: Improvements in and relating to gas-blast electric circuit-breakers
Inventor: LOVE KENNETH GEORGE
IPC: H01H33/00
Filed: 1958-06-20
Abstract: 917,920. Gas-blast switches. ENGLISH ELECTRIC CO. Ltd. June 15, 1959 [June 20, 1958], No. 33505/62. Divided out of 916,916. Class 38 (5). An air-blast circuitbreaker comprises a cylindrical insulating air receiver 45 having a metal top cap 47 on which are mounted support insulators 48 carrying seriesconnected interrupter units 49, their connection 50 being joined to the cap 47 by a conductor 51. Air is supplied through a common blast valve 52 and exhausted through coolers 53. The receiver 45 is shrouded by a shedded glass or ceramic insulator 54, which may be omitted if the receiver 45 is made of weather-resistant material with rain sheds. The receiver 45 is moulded, either as a unit or in two or more parts, in a material comprising a mat of glass fibre bonded together by a solid artificial resin, such as polyester resin.
Patent GB-823332-A (GB)
Title: Bridgehead nitrogen compounds
Inventor: RUDNER BERNARD
IPC: C07D487/08
Filed: 1957-10-28
Abstract: 5 - Amino - 8 - hydroxypyrido - [2,1-6]-benzimidazolinium chloride <FORM:0823332/IV(c)/1> (see Group IV (b)), forms azo dyes on treatment with aryldiazonium salts.ALSO:The invention comprises compounds of the formula <FORM:0823332/IV (a)/1> where R, R1 and R11 jointly consist of the atoms necessary to complete at least two mutually fused rings sharing at least one atom in addition to the bridgehead nitrogen atom.  These compounds may be prepared by reacting chloramine with the parent bridgehead nitrogen compound. Specified starting materials are pyrrocoline, quinuclidine, canadine, 1-aza-adamantine, corydaline, corybulbine, cinchonine, cinchonidine, quinine, yohimbine, reserpine, yobrin, strychnine, strychnidine, vomicine, brucine, methenamine, 1,2 - trimethylenepyrrolidine, 1,4 - diaza - bicyclo - [2,2,2] - octane and 8- and 9-hydroxy-pyrido-[2,1-6]-benzimidazole.
Patent GB-171903-A (GB)
Title: Improvements in or relating to type moulds
IPC: B41B7/04
Filed: 1920-11-29
Abstract: 171,903. Lanston Monotype Corporation, Ltd., (Lanston Monotype Machine Co.). Nov. 29, 1920. Moulds, low quad. In casting low quads of greater height than usual in moulds having a divided mould-blade, weakness of the upper section of the blade owing to its excessive thinness is avoided by forming the two sections 30, 31, Fig. 2, of the blade with corresponding stepped portions 30<1>, 30". The quads produced are formed with a step, as shown at a, Fig. 5, and are intermediate in height between ordinary low quads e and type-shoulder high quads d. The upper blade 31 is connected by a pivot 13 to its carrier 14, and a guide surface 32 is formed between the two blades at an angle to the horizontal. In a modification, Fig. 4, the upper blade 31a has a central slot or groove, and the lower blade 30a a corresponding tongue, the quads produced being of the form shown at b, Fig. 5. Specifications 8633/99, 18231/06, and 21609/09 are referred to.
Patent GB-1136307-A (GB)
Title: Improvements in or relating to foundry moulding compositions and to a process for theproduction of foundry cores
Inventor: LEMON PETER HERBERT RICHARD BR
IPC: C08G18/16
Filed: 1966-07-26
Abstract: 1,136,307. Moulding processes. BORDEN CHEMICAL CO. (U.K.) Ltd. 10 July, 1967 [26 July, 1966], No. 33658/66. Heading B3F. [Also in Division C3] Foundry moulds and cores are prepared by mixing and charging to a mould or core-box a moulding mixture comprising a granular refractory material and 0À5 to 5 per cent by weight of a binder comprising a liquid polyol of hydroxy value 100 to 600 mg. KOH/gm, a polyisocyanate in an amount sufficient to provide 0À8 to 1À5 isocyanate groups per OH group of the polyol and an amount of an accelerator sufficient to cause the moulding mixture to set within 5 minutes at 25‹ C. and finally allowing the moulding mixture to set while in contact with the mould or core-box. The mixture may be prepared from two separate sand sub-mixes. The mould or core-box may be warmed before the introduction of the foundry mix. In examples various foundry mixes are discharged into a cylindrical 2-inch diameter core-box and rammed three times with a 14 lb. weight dropped from a height of 2 inches before setting or alternatively the mixes may be charged to the cartridge of an air-operated core blower and blown into a mould or core-box.
Patent GB-804616-A (GB)
Title: Improvements in and relating to apparatus for separating granular materials having different specific gravities by means of a liquid
IPC: B03B5/42
Filed: 1956-11-05
Abstract: 804,616. Sink-float apparatus. TROMP, K. F. Nov. 5, 1956, No. 33677/56. Class 82(2) In apparatus for separating granular material having different specific gravities by means of a suspension comprising a trough 1, a bladed rotor is mounted for coaxial rotation in it so as to just clear the wall thereof, the forward portion of the rotor being surrounded by a shell 7 having slots 9 and blades 10, the rear portion being open, the trough having longitudinal walls 2a and 2b, defining a separating chamber, therein, a shoot 16 to supply run-of-mine coal and perforated pipes 12, 13, 14 and 15 to supply suspension to the chamber, and a shoot 19 for discharging the surface layer of the suspension to gether with the washed coal. The bottom of the trough 1 has an outlet 29 close to its rear wall covered by a sieve 30 just cleared by blades 5 of the rotor. The rotor comprises lantern wheels 8, joined by the perforated blades 5, having studs 3, and supported by rollers 4. Gear wheels 6 meshing with the lantern wheels 8 are driven by means not shown. The forward and rear portions of the rotor are separated by a ring 11 between which and the walls 2a and 2b respectively, are stationary portions which extend to a level just above that (S) of the suspension. A paddle wheel 28 rotates in the same direction as the trough 1 between the wall 18 and the partition 27, only the lower paddies of the wheel being in the bath. The washed coal moves over a weir 21 into the shoot 19. The sinks enter the pockets between the blades 5 and are carried over the plate 22 into the hopper 23. The middlings are swept to the rear of the bath through the opening 2b<SP>1</SP>. The high density suspension causes the high gravity middlings to fall on the sieve 30 to be collected by the blades 5. The medium density suspension causes the low gravity middlings to deposit on a sieve 32 to be collected by the blades 5. The paddle wheel 28 causes the suspension to be drawn through the sieve 32. The blades 5 discharge the middlings into the hopper 24. To add any of the finer fraction of the middlings to the washed coal, the plate 22 is perforated over the hopper 25. Details are also given of methods of recycling the discharged suspension. Specifications 466,964 and 602,534 are referred to.
Patent GB-1518380-A (GB)
Title: Carton with self-sealing reclosable end closure
IPC: B65D5/06
Filed: 1976-08-13
Abstract: 1518380 Cartons R M BERGSTEIN and F D BERGSTEIN 13 Aug 1976 [24 Dec 1975] 33793/76 Heading B8P A carton has a closure comprising a pair of opposed end closure flaps 10, 11 each of a width greater than half the width of intervening end walls 1, 3 and a pair of mating sealing flaps 12, 13 which extend, in sealed condition, in face to face engagement and parallel to side walls 2, 4 of the carton, the flaps 10-13 being pushed into the end of the carton (Fig. 8) when closed. The end walls 1, 3 preferably have generally triangular closure flaps 15, 16 and a liner 21 is preferably adhered to the carton by spaced adhesive strips (18), Figs. 1 and 2 (not shown). An extension 23, Fig. 12, on one sealing flap 13 may be foldable over the other sealing flap 12 so that a tongue 24 may be inserted into a slot 25 prior to pushing the flaps 10, 11 into the carton. Further, Fig. 17 (not shown), the flap 13 may bear a projecting portion (28) for defining a carrying handle.
Patent GB-602145-A (GB)
Title: A mechanical vibratory system to be vibrated by electrical means
IPC: H03H9/24
Filed: 1945-12-13
Abstract: 602,145. Electro-mechanical filters. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING. AKT.-GES. Dec. 13, 1945, No. 33819. Convention date, Dec. 13, 1944. Drawings, to Specification. [Class 40' (viii)] [Also in Group XL'(c)] In an electro-mechanical vibratory system incorporating a tuning fork, the latter has at least one point not subjected to translatory or rotary stresses, and is rigidly fixed to a base at at least one of these points. In one embodiment, an H-shaped tuning fork is rigidly connected to its base at a point coinciding with at least one axis of symmetry of the fork, the movement of its prongs being symmetrical with respect to the longitudinal axis of symmetry. The fork is the frequency-stabilizing member of a triode oscillator. In a second embodiment, a cross-shaped fork is connected to its base at a point on one of the bisectors of the angle. between adjacent prongs, the movement of the prongs being caused to be symmetrical relative. to this bisector. The devices may be used in electro-mechanical filters. The frequency and damping of the vibrator may be varied by altering the width' of the connecting piece between the prongs.
Patent GB-605127-A (GB)
Title: Improvements in or relating to air conditioning systems
IPC: F24F7/06
Filed: 1945-12-14
Abstract: 605,127. Ventilation systems for aircraft. WESTLAND AIRCRAFT, Ltd., and SWAFFIELD, P. J. Dec. 14, 1945, No. 33951. [Class 4] [Also in Group X] An air-conditioning system, especially for aircraft, comprises an air circulating fan which is driven by an air turbine or other prime mover operated by air delivered from a supercharger. A system for an aircraft pressure cabin is shown, in which a turbine b is driven by air supplied from the supercharger through an inlet a, the exhaust air passing to the cabin through a discharge pipe d disposed concentrically within a larger pipe e, the annular space f between them forming a conduit for the passage of cabin air circulated by a fan g directly coupled to the turbine b. The quantity of compressed air delivered to the cabin from the turbine is controlled by a piston valve i moving in a sleeve fitted with a number of escape ports h. The valve i is carried by a rod k to which is also attached a mushroom valve enabling the air supply from the turbine to be completely cut off, in which case the air in the system is maintained in continuous circulation by the fan g without replenishment. Heating apparatus may be fitted between the outlet o of the pipe e and the cabin.
Patent GB-521573-A (GB)
Title: Improvements in clasps
IPC: A41F19/00
Filed: 1938-11-22
Abstract: 521,573. Fastenings for fabric. ROBINSON & SONS, Ltd., CASCELLOID, Ltd., GILLIBRAND, C. G., and PALLETT, A. E. Nov. 22, 1938, No. 33998. [Class 44] A fastening for securing the end of a piece of fabric, for example securing a catamenial appliance to a belt, comprises a member having two apertures 2, 3 the former of which has a lateral slot 5 extending towards the latter. The edge of aperture 3 may have teeth 4. In use, the fabric is passed through aperture 2, pulled into slot 5, and then passed through aperture 3. As shown, aperture 2 is opensided and defined by a pair of flexible limbs 1 with terminal apertures 6. A tape, not shown, may be threaded through apertures 6 and secured by stitching, the tape being secured to a belt or other article. Any pull on the fabric and tape causes the limbs 1 to be pressed towards each other to effect a firmer grip on the fabric in slot 5. Alternatively, the device may be used with a complementary member having a slot 9 by which it is secured to a supporting tape 10, the member having a pair of spaced limbs 7 with terminal hooks 8. These hooks may be detachably engaged with the limbs 1 as shown in Fig. 3 so that any pull causes a gripping effect on the fabric in slot 5 similar to that described above.
Patent GB-1196033-A (GB)
Title: Improvements in Devices for Sensing the Presence of Liquid in Electrically Non-Conducting Tubes.
Inventor: CRAWLEY DAVID FRANCIS CHARLES
IPC: G01F23/26
Filed: 1967-07-25
Abstract: 1196033 Detecting presence electrically D F C CRAWLEY 12 Sept 1968 [25 July 1967] 34104/67 Index G4N 4D N6DX N1C1 N3C A device for sensing the presence of a liquid in a non-conductive tube comprises a sensing capacitor C2, in which one electrode is in the form of a spring clip for gripping the tube, connected into the circuit shown in Fig.1. An adjustable capacitance C2 is adjusted to balance the circuit so that in the absence of liquid at capacitor C2 no current flows in the load RL. When liquid is present at capacitor C2, the circuit becomes unbalanced and current flows in the load RL. The device may be enclosed in a metallic housing (not shown) in which two coaxial holes are provided for the tube. The housing may serve as the other electrode of the sensing capacitor. The clip electrode and the housing may be coated with inculator material.
Patent GB-485770-A (GB)
Title: Improvements in and relating to hatch covers
IPC: B63B19/26
Filed: 1936-12-12
Abstract: 485,770. Ships' hatch-covers. KING, C. W.. and MACGREGOR & KING, Ltd. Dec. 12, 1936, Nos. 34197/36 and 31281/37. [Class 113 (i)] A steel hatch-cover arrangement in which upstanding coamings are dispensed with, the covers bedding down on packings carried below the deck level so that the upper surface of the cover lies flush with the deck. The packing 19 is carried on an angle bar 17 and receives the edge of the cover 11. The sides of the cover are provided with rollers mounted in eccentric bushes similar to that shown in Specification 305,836, [Class 113 (i)], so that the covers can be moved to the hatch end, the spigot 32 engages the recess 37 and the cover is then tipped up. The space around the covers is closed by a piece 50, covered with felt 51 and secured by screws 52. In a modification one cover is formed with wedge sectioned ends so that when it is lowered into place it forces the remaining covers laterally along the hatch. Specifications 353,364 and 460,753 are referred to in the Provisional Specifications.